Combined flue expanding and beading tool.



No- 829,303. BATENTED AUG. 21. 1906.

J, V. TERRY. COMBINED FLUE EXPANDING AND READING TOOLS APPLICATION rms'n AER-10.1908.

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W/ /VESSES 1? JAM W UNITED STATES PATENT OFFICE.

JOHN V. TERRY, OF TUCSON, ARIZONA TERRITORY.

COMBINED FLUE EXPANDING AND BEADING TOOL Specification of Letters Patent.

Patented Aug. 21, 1906.

Application filed April 10, 1906. Serial No- 310,904.

To all whom it may concern:

Be it known that I, John V. TERRY, a citi zen of the United States, and a resident of Tucson, in thecount of Pima and Territory of Arizona, havemat e certain new and useful Improvements in a Combined Flue Expand.- ing and Beading Tool, of which the following is a specification.

In practical service, especially in locomotive-boilers, the fiues sooner or ater become loosened in the head or flue sheet, so that leaks occur. In order to tighten the fines again and prevent leakage, their ends require to be expanded and also beaded or upset. It is the general practice to rely at first on beading or u setting alone; but as the result of repeate o erations of this kind the flue ends become w at is termed heeledthat is to say, burred or roughened interiorly, and hence cannot be made to fit tightly as before. It is impossible to remove the bur and restore the flue to its proper place and fit without in'uring it, and it is impossible to expand the ues with rollers owing to the burred or irregular inner surface, and hence resort is commonly had to a tapered expanding mandrel or handlepin, which when driven in is liable to force the bead away from the flue-sheet and cause it to break, thus destroying the usefulness of the flue.

My invention is adapted to perform both operations-to wit, expanding and heading simultaneously and in half the time required by the ordinary method, and the operation may be repeated as often as desired without destroying the flue.

The construction and operation of my'irre proved tool are hereinafter described and illustrated in the accompanying drawings, in which Figure Us a central longitudinal section of the tool, a line and flue-sheet being also shown in section. Fig. 2 is a plan view of the tool. Fig. 3 is a perspective viewof one of the devices by which expanding and bead ing are effected. Fig. 4 is a cross-section on the line 4 4 of Fig. 1. Fig. 5 is a cross-section on the line 5 5 of Fig. 1.

The body A of the tool comprises '1 elongated cylindrical portion .1, that serves as a handle in operating the tool, and a head 2, which is slotted and enlarged laterally in )pposite directions, also expanding and heading devices B, and a sliding hammer or piston (J. The body A of the tool is extended beyond the slotted portionpr headZ, as indicated at 3, in Figs. 1, 2, and 5, such portion having a head or enlarged circumferential rib 4, which en- =ters the tube as, that is to ,be expandedand beaded.

The devices B are pivoted on bolts 5 in the outer portion of the slotted head 2, and the hammer or piston C is provided with an enlarged head 6, which is ada ted to recipro cate in a correspondin ly-enl arged chamber of the handle 1. The ead 6-of the hammer C strikes upon the anvil portion 7 of the devices B, thus tending to rotate them on their dictate.

of the hammer portions 8 of devices B are rounded or curved, so as to conform practically to the curvature of the flues. At the side thereof is formed a semicircular groove 9' by which the 'end of the flue is upset and beaded, as indicated in Fig. 1. It will be noted that the pivots 5 of the devices B are located eccentrically withreference'to the ivot-holes are located exterior to a plane comciding with the axis of the hammer ortion eccentrically to such lane, being on the inner side thereof, as wiil be seen by inspection of Figs. 1 and 3. In consequence of such location of the pivots and the anvil portions 7 and hammers 8 relative to each other it is apparent that the blow delivered by the piston C necessarily forces the hammers 8 apart and that a ortion of the force thus applied is expendec on the end of the tube 11:, t us gradually curving it outward and inwardly until its edge comes in contact with the flue, as shown in Fig. 1. Thus the operations of expanding and heading the flue ends are performed s1- multaneously and very expeditiously. It is to be understood that in operating the tool it is rotated after each blow, so that the expansion and heading operations will he effected in such manner as to produce a smooth As shown in Figs. 3 and 5, the outer sides base of the hammer portions 8 on the outer body of such devices-that-1s to say, the,

8, and the anvil portions 7 are also coated pivots 5, whereby the forwardly-projecting r hammer, or otherwise, as convenience may surface without injuring the flue or defacing it in any manner.

As indicated in Fig. 1, the anvil portions 7 are rounded on their inner ends and inner sides, and thus adapted to work in contact under the impact of the piston C.

The body A of the tool is preferably made of forged steel and the other 7 arts of toolsteel. The tool as a whole is ight, strong, and durable, may be cheaply constructed and easily manipulated, and is highly efficient. in use.

I claim-- 1. The improved flue-expanding and beading tool, comprising a tubular body having an enlarged slotted head, expanding and heading devices pivoted in said head and having hammer portions for ex ianding a flue and adjacent portions for beading the same, and anvil portions located adjacently and opposite the inner end of the tubular portion, and a sliding piston or hammer adapted to act on such anvil portions, substantially as described.

2. The improved tool for the purpose specified, comprising a tubular body having an enlarged slotted head, and a tubular extension, or nose, 3, adapted to enter a flue, devices pivoted in the head and comprising hammer portions for acting upon the flue for expanding it, and anvil portions located ad- 'acently and opposite the inner end of" the tuular ortion, and a slidable hammer or piston a apted to act on such devices for rotating them and thus expanding a flue by impact of the hammer portions thereon, substantially as described.

3. A tool for the purpose specified, comprising a tubular body having a slotted head,

ue-expanding devices pivoted in such head and having forward eictensions adapted to enter a flue and act thereon by impact, anvil portions located contiguously at the opposite ends of the devices, and laterally from the pivots of the latter and a slidable piston or hammer that delivers blows' on said anvil portions, substantially as described.

4. The combination with the tubular body of the tool, of a flue-expanding device pivoted thereto and having a hammer portion rejected forward, and an anvil portion proecting rearwardly and located inward from the plane of the axis of the hammer portion, and a slidable piston for acting on the anvil, substantially as described.

5. The combination, with the tubular body havipg a slotted head, of flue-expanding devices pivoted oppositely, and having hammer portions extended forward opposite each other, and anvil portions which a e rounded and adapted to work in contact, the same being located inward from the plane of the axes of the hammer portions, and a slidable iston for acting on the anvil portions, sulistantially as described.

6. The combination,with the tubular body having a slotted head, of flue-expanded devices having hammer and anvil portions located at opposite ends, and pivots located cccentrically to such hammer and anvil portions, and a slidable piston for acting on the anvil portions, substantially as described.

7. The combination, with a tubular body having a slotted head, of devices pivoted in such head and provided with grooves or recesses adapted to receive the end of a flue and upset and head the same, and anvil portions arranged on the inner sides and outer ends of said devices, and a slidable piston for acting thereon. substantially as described.

8. The combination, with a body, and a slidable piston guided therein, of tube-exanding devices pivoted eccentrically to the liody and having-anvil and hammer portions at opposite ends, substantially as described.

JOHN V. TERRY.

Witnesses:

A. E. Jaoorss, GEO. F. GRAY. 

